Patent US2952774A successfully refreshed from Google Patents.
US2952774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation fuel gauge
Assignee: North American Aviation Corp
•
Filing: 1953-09-28
•
Granted: 1960-09-13
•
Expires: 1973-09-28
Abstract
No abstract record available.
Inventors
- 👤 Donald F Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:26
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/28; G01F23/284; G01F23/288; B; B64; B64D; B64D37/00; B64D37/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
MEANS FOR MEASURING THE MASS OF FUEL IN A PLURALITY OF IRREGULARLY-SHAPED AIRCARFT FUEL TANKS COMPRISING A SOURCE OF GAMMA RADIATION POSITIONED ADJACENT ONE SURFACE OF EACH SAID TANK, A RADIATION DETECTOR HAVING AN OUTPUT IN ELECTRICAL FORM POSITIONED ADJACENT AN OPPOSITE SURFACE OF EACH SAID TANK, AND ELECTRICAL MEANS INCLUDING MEANS CALIBRATED TO THE GEOMETRICAL SHAPES OF SAID TANKS FOR SUMMING THE OUTPUTS OF SAID DETECTORS TO THEREBY OBTAIN A MEASURE OF THE TOTAL MASS OF FUEL IN SAID PLURALITY OF TANKS.
Claim 2
Dependent Claim
83 words
MEANS FOR MEASURING THE MASS OF FUEL IN A PLURALITY OF IRREGULARLY-SHAPED AIRCARFT FUEL TANKS COMPRISING A SOURCE OF GAMMA RADIATION POSITIONED ADJACENT ONE SURFACE OF EACH SAID TANK, A RADIATION DETECTOR HAVING AN OUTPUT IN ELECTRICAL FORM POSITIONED ADJACENT AN OPPOSITE SURFACE OF EACH SAID TANK, AND ELECTRICAL MEANS INCLUDING MEANS CALIBRATED TO THE GEOMETRICAL SHAPES OF SAID TANKS FOR SUMMING THE OUTPUTS OF SAID DETECTORS TO THEREBY OBTAIN A MEASURE OF THE TOTAL MASS OF FUEL IN SAID PLURALITY OF TANKS.
References Cited (Backward Citations)
US2316239A
Cited
US2411712A
Cited
US2388559A
Cited
US2480846A
Cited
US2576512A
Cited
US2674695A
Cited
US2659012A
Cited
US2765410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |